genetic information (technology, classification and diversity) Flashcards
how does genome sequencing help understaning of organism’s relationships?
entire base sequences of DNA can be compared
can compare DNA base sequences between organisms
closely related organisms have a higher percentage of similarity in DNA base order
how does comparing amino acid sequences help understanding of organism’s relationships?
proteins are made of amino acids
sequence of amino acids coded for by DNA base sequence
more similar amino acid sequence= closer related species are
how do immunological comparisons help understanding of organism’s relationships?
similar proteins bind to the same antibodies
how did genetic diversity used to be assessed?
looked at measurable/observable characteristics in a population
what is variation?
the differences that exist between individuals
what is variation caused by?
genetic factors and differences in the environment
what is biodiversity?
variety of organisms living in an area
what is species diversity?
number of different species/organisms in a community
what is genetic diversity?
variety of genes within a population
what is ecosystem diversity?
range of different habitats
what is a habitat?
place where an organism lives
what is a community?
all of the populations of different species in a habitat
what is local biodiversity?
variety of different species living in a small habitat, eg) pond
what is global biodiversity?
variety of species living on Earth
what is species richness?
number of an organisms in a particular area at a given time
